Slow Horses Season 6 Review: Gary Oldman’s Spy Thriller Loses Its Spark

The espionage drama adapts Mick Herron’s novels Joe Country and Slough House, following the dysfunctional MI5 cast as they run from contract killers.

Departure of Creator Will Smith Shapes Season Six

According to reports, season six is the first not guided by creator Will Smith, whose previous writing on The Thick of It and Veep gave the Apple TV series its sharp comic tongue. Reviewers note that the absence of Smith’s drollery is discernible in a more straight-faced story, compounded by the natural creative erosion of a long-running show. The series focuses on the staff of Slough House, a purgatorial MI5 department for misfits who routinely outperform elite operatives despite their shambling status.

Plot Mechanics and Returning Characters

According to published reviews, the new plot centers on past team members being targeted for elimination, starting with a brief comeback for Struan Loy, played by Paul Higgins. Loy meets a grim end in a shipping container on an estuary mud flat, prompting a frantic cross-country chase. The narrative brings back several familiar faces, including Rosalind Eleazar as Louisa, Joanna Scanlan as Moira, and Hugo Weaving as Frank, River Cartwright’s mercenary father, alongside the return of Sid Baker, played by Olivia Cooke, whose reappearance was teased in promotional material.

Did you know? Apple TV has cultivated a strong reputation for consistent genre programming, with outlets describing Slow Horses as one of the platform’s most reliable offerings alongside hits like Severance and Silo.

Performance Highlights and Critical Reception

Jack Lowden returns as the luckless field agent River Cartwright, facing renewed scrutiny as he remains on rumored shortlists for the James Bond franchise. Gary Oldman continues his role as Slough House boss Jackson Lamb, though reviews suggest the character shows signs of creative burnout following season five. Meanwhile, Lenny Rush joins the cast as a civilian caught in the crossfire, drawing praise for immediately improving any scene he enters, while actors MyAnna Buring and Kyle Soller play the black-clad contract killers pursuing the team.

Slow Horses Season 6 Review: Gary Oldman's Spy Thriller Loses Its Spark
Photo: independent.co.uk

Frequently Asked Questions

Where can I watch Slow Horses season six?

Which books form the basis of season six?

According to coverage from The Independent, the season adapts material from Mick Herron’s novels Joe Country and Slough House.

Slow Horses Season 6 Review: Gary Oldman's Spy Thriller Loses Its Spark
Photo: aol.co.uk

Who are the main characters returning for the new season?

Returning cast members include Gary Oldman as Jackson Lamb, Jack Lowden as River Cartwright, Kristin Scott Thomas as Diana Taverner, and Saskia Reeves as Catherine Standish.


What are your thoughts on the latest chapter of the espionage saga? Drop a comment below and join the discussion on how the series is holding up.

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